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| 4 Open IRT U2400 Circulo Peruano de Ajedrez | Lima | PER | 2023-06-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1460 | 1515 | 4.50 | 7 | 0.39 | 31 | 12.09 | |
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 Callupe Matias, Obed Esteban | | | 1115 * | PER | 1.00 | 1 | 0.08 | 31 | 2.48 | |
 Casqui Lopez, Pamela Grace | | | 1252 | PER | 1.00 | 1 | 0.18 | 31 | 5.58 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1810 | PER | 0.00 | 1 | -0.15 | 31 | -4.65 | |
| Coaquira Gonzales, Oscar Adriano | | | 1236 | PER | 1.00 | 1 | 0.16 | 31 | 4.96 | |
| Reyes Zavaleta, Fabian Ricardo | | | 2026 | PER | 0.00 | 1 | -0.04 | 31 | -1.24 | |
| Fernandez Monteza, Fabian Arturo | | | 1369 | PER | 1.00 | 1 | 0.30 | 31 | 9.30 | |
| Mollo Figueroa, Nicole | | | 1411 | BOL | 0.50 | 1 | -0.14 | 31 | -4.34 | |
| * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) |
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| IRT Clasico Festival de Ajedrez AOPIP Armagedon | Lima | PER | 2023-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1542 | 1515 | 3.50 | 6 | 0.81 | 31 | 25.11 | |
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| Rodriguez Varillas, Abraham Jesus | | | 1722 | PER | 0.00 | 1 | -0.23 | 31 | -7.13 | |
| Valenzuela Reinoso, Safrys | | | 1138 | PER | 1.00 | 1 | 0.09 | 31 | 2.79 | |
| Neyra Alba, Daniela Sofia | | | 1290 | PER | 1.00 | 1 | 0.22 | 31 | 6.82 | |
| Saenz Ayllon, Ivan David | | | 1727 | PER | 1.00 | 1 | 0.77 | 31 | 23.87 | |
| Palomino Quispe, Mateo Henry | | | 1669 | PER | 0.50 | 1 | 0.21 | 31 | 6.51 | |
| Ilasaca Gaona, Owen Hisahito | | | 1704 | PER | 0.00 | 1 | -0.25 | 31 | -7.75 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) |
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| Campeonato Nacional de Ajedrez Impar 2023 - Sub 15 Femenino | Lima | PER | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1326 | 1515 | 6.00 | 9 | -0.49 | 31 | -15.19 | |
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| Pichilingue Orbe, Camila Belen | | | 1109 | PER | 1.00 | 1 | 0.08 | 31 | 2.48 | |
| Ynga Huaman, Luz Marina | | | 1291 | PER | 1.00 | 1 | 0.22 | 31 | 6.82 | |
| Tacas Cardenas, Pamela Natividad | | | 1377 | PER | 0.00 | 1 | -0.69 | 31 | -21.39 | |
| Neyra Alba, Daniela Sofia | | | 1290 | PER | 1.00 | 1 | 0.22 | 31 | 6.82 | |
| Sotelo Leon, Ester Victoria | | | 1400 | PER | 0.00 | 1 | -0.66 | 31 | -20.46 | |
| Amaya Retamozo, Carmen Rebeca | | | 1200 | PER | 1.00 | 1 | 0.14 | 31 | 4.34 | |
| Arenas Lavado, Luciana Andrea | | | 1531 | PER | 0.50 | 1 | 0.02 | 31 | 0.62 | |
| Romero Velasquez, Jimena | | | 1170 | PER | 1.00 | 1 | 0.11 | 31 | 3.41 | |
| Herrada, Blanco Maria Fernanda | | | 1566 | PER | 0.50 | 1 | 0.07 | 31 | 2.17 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) |
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